diff --git a/htdocs/compta/facture/class/api_invoices.class.php b/htdocs/compta/facture/class/api_invoices.class.php
index 68711485cad..5cbf1cc939b 100644
--- a/htdocs/compta/facture/class/api_invoices.class.php
+++ b/htdocs/compta/facture/class/api_invoices.class.php
@@ -227,7 +227,7 @@ class Invoices extends DolibarrApi
             $this->invoice->lines = $lines;
         }*/
 
-        if ($this->invoice->create(DolibarrApiAccess::$user, 0, $request_data["date_lim_reglement"]) < 0) {
+        if ($this->invoice->create(DolibarrApiAccess::$user, 0, (empty($request_data["date_lim_reglement"]) ? 0 : $request_data["date_lim_reglement"])) < 0) {
             throw new RestException(500, "Error creating invoice", array_merge(array($this->invoice->error), $this->invoice->errors));
         }
         return $this->invoice->id;
diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 092049e5c13..645b6a5e1ab 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -286,7 +286,7 @@ class Facture extends CommonInvoice
 	 *
 	 *	@param	User	$user      		Object user that create
 	 *	@param  int		$notrigger		1=Does not execute triggers, 0 otherwise
-	 * 	@param	int		$forceduedate	1=Do not recalculate due date from payment condition but force it with value
+	 * 	@param	int		$forceduedate	If set, do not recalculate due date from payment condition but force it with value
 	 *	@return	int						<0 if KO, >0 if OK
 	 */
     public function create(User $user, $notrigger = 0, $forceduedate = 0)